The Upper section of the Roaring Fork River is the narrowest and fastest section of the river with the most vertical drop. The fishing is characterized by mostly riffle water with the occasional pool and run. These fish while not the largest in the river can many times be the most aggressive.

The Roaring Fork River is a freestone river that has many different faces as it travels throughout the Roaring Fork Valley. It originates on Independence Pass and culminates at the confluence with the Colorado River in Glenwood Springs.